Hot-water heating apparatus.



No. 875,107. PATENTED DEG. 31, 1907. A. B. BECK.

HOT WATER HEATINGAPPARATUS.

APPLICATION FILED FEB.13, 1905.

2 SHEETS-SHEET 1.

PATENTBD DEG. 31', 1907.

A. B. BECK. HOT WATER HEATING APPARATUS.

APPLIOATION FILED PEB. 13. 1905.

2 SHEETS-SHEET 2.

ANDERS B. RECK, OF COPENHAGEN, DENMARK.

i Hor-'Waren marine 'nrrnan'rna Specification of Letters vllatent.

raeentea nee. si, reo?.

, .Application filed February 13,1905. Serial No. 245,501-` ATo all'whom it may concern."

Be it known that I, ANDERS B'. Rnon, a subject of the King of Denmark,and a resident of' Copenhagen, Denmark, have invented a new and ImprovedHot-Water Heating Apparatus, of Which the following is a full, clear,and exact description.

My invention relates to hot Water heating apparatus of the class,inWhich the velocity of the circulating Water is increased by introducingsteam directly into a main rising pipe, causing the Water therein toboil condensation' of the steam, developed by such boiling, beingeffected by the circulating Water. v

ln the improved means constituting my invention a jet (liquid) condenseris employed, condensation being eected by bringing the steam, developedby boiling in the main rising pipe, into direct contact With the Watercirculating in the hot-Water apparatus before the steam from the boileris introduced into said Water.

Figure 1, Fig. 2 and Fi 3 of the accompanying drawings, are iagrams ofthree methods of applying Wet condensation to hot-Water apparatus.

ln Fig. 1 is shown'a complete hot-Water heating circuit consisting of amain flow pipe N1, a riser n, radiators n connected to the riser, areturn main and a main'rising pipe, comprising sections N2, N and M andcondensing and heating chambers c and H communicating With saidsections. The section N 2 conducts Water from the main return of thehot-Water apparatus to the condenser c; section N communicates with theheating chamber H; section M delivers to a separator chamber tank S, towhich the main ilow' pipe N1. is connected, the aforesaid making .acontinuousl circuit.

The steam space of the boiler E and the heating chamber H are .connectedby a steamvpi e s, which is provided with a foraminate delivery end s.The top of the separator tank S and the condensing chamber c areconnected directly by a steam p i e A. An overovv pipe f, connected tofte Water space .of the steam boiler, prevents the Water line in the hotwater apparatus from exceeding a predetermined height. The steam from4the steam pipe s is condensed in the heating chamber H, thus adding tothe quantity of the Water in the hot- Water ap aratus. The separatingtank 'or chamber is provided with an air passage L preferably in theform of an automatic valve,

"closing automatically, when the steam has expelled the air from theupper space ofthe separator. Before starting the apparatus the `same isiilledv with Water to about the' level of the outlet of the overflowpipe f,`the

Water rising in the pipe A to a level equal to that in the chamber Whensuflicient ,steam pressure. has developed in the steam boiler E, steamwill pass through the pipe s and enter the heat- 'ing chamber H. Thewater 'in the chamber H,.due to the entering steam, Willboil as- Willthat in thepipe M. The Water column in said pipe is then lightened bythe-steam and being in eommunicationwith the Water l columnformed bysection A, chamber c and a'portion of section N', the latter column ydescends until a hydrostatic equilibrium is eected, leaving a s acewithin and above the chamberc. This space being in communication withchamber S and above the Water level in the latter, the steam whichlseparates itself from the Water in the tank S thereby-gains accesstothe jet condenser in the chamber c. The steam thus passes from chamberS to c by reasonof the reduced pressure due to the condenser.

The chamber S in the embodiment shown in Fig. 1 `performs not only thelfunction of separating the steam from the Water, but acts as 'anexpansion chamber for the hot- Water-apparatus, the Water added tochamber S by condensation of steam in the heaterA H overiiowing by pipef, When steam is cut 0E from pipe e heater H and ipe M, the Water columnin the latter, not lfacing lightened by steam, Will rise in chamber cand pipe A. rlhe Water necessary `to fill the empty s ace in chamber cand pipe A must come om chamber S, and to maintaina-continuou's'circulation in the a aratus, the chamber S must, in the'embo iment shown in Fig. l be of reater capacity than chamber c.

' en the water column in pipe M is lightcned by the steam, the Water inchamber S will flow towards the condensing chamber c through thehot-Water-iloW-pipe N the riser n, the hot-Water return main and thepipe N2. 'lhe result will be that kWaterwhich'enters the chamber c fromthe pipe N2, will meet here the, steam from the chamber S,.

' 'chamber S, thus a continuous circulation in ay aan ,ank s the pipe Mand .an effective circulation of the Water in the whole heatingapparatus can be maintained.-

In Fig. 2 is shown va modification of the construction shownl in Fig. 1,the steam boiler and return main of the hot-water apparatus beingomitted. The diilerence 'between the two forms of apparatus, as shownis, that in Fig. 1 the air passage L for -air from the apparatus and theoverflow pipe f are connected with'the expansion chamber S, in Fig. 2this outlet, L', yand overflow, f', are shown connected to thecondensing cham-4 ber c, and in the same figure the pipe A is eX- tendedto chamber c terminating in a rose a short distance fromthe bottom ofchamber c.

Tank c in Firr 2 must be of greater capacin order to make the watercircuit continuous under all circumstances. Before steam enters heaterII in pipe M (Fig. 2i). and'has lled to the-level-of the overflow ipe inchamber c, the water level in cham- Eer S will be the same as in chamberc, but as soon as steam'rises in pipe M and makes the column" in Mlighter the water will ascend in I chamber S till an equilibrium isestablished,

Whereu on the `water level in chamber c will deseenA In this form ofapparatus the chamber c must be of greater capacity than chamber S,otherwise chamber c would he emptied and the continuous water circuitdestroyed between pipes N 2 and N, before the Water had ascended inchamber S to the level where equilibrium between the diderent columns isestablished. The water formed 'by condensation inthe heater H willsubseqi'lently reiill the tank c to the level of the f ratus forseparating steam and water.

v yIf the steam pressure in the steam pipe -s is such that with atmosheric pressure in chamber c `more steam wil passthrou h chamber H, pipe'M,.tank S and pipe A t an can be con ensed by the water passing throu hchamber c then an automatic air valve Il .must be provided. If the steamressure in pipe sis kept down below a certain imit, thenthe.steam'passing through ipe A'will alwa s be entirely condensed andpno valve will e needed -thusit will be `seen that this outlet can beermane'ntly o en to the atmosphere `or the c amber c itsel can be open;

In Fig. 3 is shown the referred form of the invention, wherein theocation of the overow pi e f and the propcrtionbetween the sizes o thetwo chambers S and c are the same as in Fig. l, pipe A terminating inchamber C 'as 1n`-Fig. 2, and an air vassa'ge L located on a verticalppe J. N

Sand at the am@ level in ank is, pipe'ii and pipe J. When steam enterschamberI-I the rising column of water is lightened in pipe M,

then if chamber c is not located too low,-the

pipe A will be wholly empty, and steam will have access from tank S tochamberc. atmospheric pressure, acting through the air passage `L will'depress the water level lin'v pipe J but asthe steam pressure over. thewater in tank S will always b somewhat higher than atmospheric pressure,as long as the water-boils in pipe M, the water level will not de- 'Awill collect over the Water 1n ipe J and'Y will pass out of the passageL. y veryvv ac# curate regulation of the steam pressure in pipe s, thisoutlet may be` left Without any closing device just as in an apparatus,built according to Fig. `2, but in most cases it willl give. bestresults to an automatic valve. A f

; I am aware that jet condensers have been provide the outlet with/1"l.I

employed by others for hot water heating ,i

apparatus but only for that ,class'ofi apparatus, Where the boiler ofthe apparatus is a hot water boiler, and'where the main-return jhot-water pipe after having passed the jet condenser is carried down andconnected to the lowerpart of the hot-water boiler, from,Y

ter through pi es from the jet condenser` down to the boi er andfrom'theboiler a ain' up to the' expansion-tank a great dea of friction iscaused especially in high' buildings and in such buildings where fromsome reason' the expansion-tank can not be placed directly over theboiler. where steam from a steam-boiler is employed to heat the water tolboiling. point thewat'erV after having passed the jet condenser needvnot be carried down to the boiler but only to a hepter laced directlyunder the expansiontan By my invention,

us the distance the Water has to travel in the Whole apparatus is muchshorter, 4

the friction much less andthe circula'tion of the water much more rapidby the sameheat 1 'iiow and return ipes, radiating devices, a

condensingcham er, a steam heating chamber and a separating chamber witha boiler,

,7o-i The., .w

erano? a pipeleading from the steam space of the boiler to the heatingchamber, a pipe leading from the upper portion of the separating chamberto t e condenser, a pipe communicating with the separating chamber belowthe entrance to the last named pipe and leading to the water space ofthe boiler, and suitable pipe connections leading from the condensingchamber to the heating chamber and from the heating chamber to theseparating chamber respectively, the parts being so arranged that inoperation the ilow in the hotwater circuit is toward the separatingchamberfrom'the heating chamber. p

2. In a heating system, the combination of a hot-water circuitcomprising suitable flow and return pipes, radiating devices, acondensing chamber provided with an air vent, a steam heating chamberand a separating chamber with a boiler, a pipe leading from the steamspace `of the boiler to the heating chamber, a pipe leading from theupper portion of the separating chamber to thecondenser, a pipecommunicating with the separating chamber below the entrance to the lastnamed pipe and leading to the water space of the boiler, andsuitablepipe connections leading from the condensing chamber to theheating chamber and from the heating chamber to the separating chamberrespectively, the parts being so arranged that f in operation the low inthe hot-Water circuit is toward the separating chamber ,from the heatingchamber.

3. In a heating system, the `combination of a hot-Water circuitcomprising suitable flow and return ipes, radiating devices, acondensing cham er, a steam heating chamber and a separating chamberwith a boiler, a ipe leading from the steam space of the boller to theheating chamber, a pipe leading i from the upper portion of theseparating chamber to the condenser, a ipe communicating with theI searating dhamber below the entranceto the ast named pipeand leading tothe water space of theboiler, a pipe rising from the condenser and anair valve on said pipe on a higher level than the entrance on theseparating chamber to the said pipe thatleads to the water space of theboiler, and-suitable pipe connections leading from the condensingchamber to the heating chamber and vfrom the heating chamber to theseparating chamber respectively, the parts being so arranged that inoperation the flow in the hot-water circuit is toward the separatingchamber from the heating chamber.

In testimony whereof I aIiX my signature in presence of two witnesses.

ANDERS B. RECK.

` Witnesses:

C. H. CRAWFORD, L. WALDMAN.

